Unit 2 Mid-Unit Test Review

Front

What is the best method to separate a mixture of sand, iron filings, and water?

Back

Using a filter and a magnet.

Front

What is a physical property?

Back

A property that can be observed and measured without changing the matter being studied.

Front

How can metals be separated from non-metals?

Back

By using a magnet.

Front

What is evaporation in the context of separation techniques?

Back

A method that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid.

Front

Which mixture can be best separated using a filter?

Back

Sand and rocks.

Front

What is filtration?

Back

A separation technique that uses a filter to separate solids from liquids.

Front

What is the role of a magnet in separation techniques?

Back

To attract and separate magnetic materials from non-magnetic materials.

Front

What is chromatography?

Back

A method used to separate mixtures based on the different rates at which components move through a medium.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the substance's chemical composition, while a chemical change does.

Front

What is a mixture?

Back

A combination of two or more substances that retain their individual properties.